steel angle 1.good service, best price 2.material: Q235B, Q345B, SS400, A992Gr50, S235JRG2, S235JR, S275JR and s355jr ... .Stabdard: GB/T 9787, GB/T9788, JIS, ASTM, EN3.Size: 2#-20#4.Application: -various building structures, such as beams, bridges, transmisson ...